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A magnetic field and radio waves produced by a computer are used in the medical imaging procedure known as magnetic resonance imaging (MRI), which produces precise images of your body's organs and tissues.
Large, magnetised tubes make up the majority of MRI equipment. The magnetic field in an MRI machine causes your body's water molecules to momentarily rearrange. These aligned atoms emit tiny signals that are used to make cross-sectional MRI pictures, which resemble the slices of bread.
Additionally, the MRI scanner can create 3D images that may be viewed from various perspectives.
Why is it done?
Your doctor can evaluate your organs, tissues, and skeletal system using MRI in a noninvasive manner. It creates detailed images of the inside of the body that aid in the diagnosis of many conditions.
MRI scans of the spinal cord and brain
The brain and spinal cord imaging test that is most frequently utilized is the MRI. It is frequently done to assist in diagnosing:
- vein aneurysms in the brain
- disorders of the inner ear and eyes
- a number of scleroses
- spinal cord conditions
- Stroke
- Tumors
- trauma-induced brain damage
The functional MRI of the brain is a unique variety of MRI (fMRI). It creates visual representations of blood flow to particular brain regions. It can be used to investigate the structure of the brain and identify the regions of it responsible for crucial functions.
This aids in locating crucial language and motor control regions in the brains of patients who may undergo brain surgery. Functional MRI can also be used to evaluate damage caused by conditions like Alzheimer's disease or head injuries.